Peak Composite Graphs
In Live Optics, Peak Composite Graphs are different than Aggregation Graphs.
Aggregation graphs take similar values, SUM or aggregate them and create a new value that represents the whole.
For example, Port 1 has 32 MB/s of throughput and Port 2 has 20 MB/s of throughput. 32+20 can be aggregated to show that the total throughput is 53 MB/s.
A Composite Graph will also be made up of parts that are related but need to be tracked individually. In other words, SUMming the values don’t lead to a truth.
For example, if Port 1 is at 95% utilization and Port 2 is at 5% utilization, the array is not at 100% port utilization. Port 1 is in trouble and Port 2 is underutilized.
For this reason, we have created what we call a Peak Composite Graph and the rest of this writeup will help you understand how it’s constructed. You will find it is straightforward and helpful.
Live Optics will plot a timeline of the sample data retrieved. Let’s assume that we have these 4 ports that are all doing a similar duty, but what matters is if any of the ports are exceeding our threshold of 80% utilization. If any port violates this this threshold, it’s a problem. From a dashboard perspective, it doesn’t even matter which one.
The Peak Composite Graph will look across all the objects being measured and report the Peak value to the Graph.
For illustrative proposes, the graph below shows the Peak Composite, meaning the highest Peak from all 4 ports is elevated to be the reporting value in the Composite graph. More than one port exceeding the threshold (or a tie) is not relevant. We know that at that time there was a utilization threshold exceeded on the array.
Hovering over the indicator in the Peak Composite Graph will tell you the threshold that was exceeded.
Note: These graphs might be released prior to the release of the individual object level graphs shown in the example below. Ultimately, they will all be there, and clicking through the tree menu object explorer will allow you to see the individual Objects' graphs that contributed to the Composite.